US3473329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston arrangement for fluid-operated brake system
Assignee: Ernst Heinkel AG
•
Filing: 1967-09-06
•
Granted: 1969-10-21
•
Expires: 1987-09-06
Abstract
No abstract record available.
Inventors
- 👤 Giorgio Eggstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:42
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/20; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T13/242; B60T13/244; B60T13/46; B60T13/52; B60T13/565
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |